焰迹凤凰

If, during your declare attackers step, Flamewake Phoenix is tapped or is affected by a spell or ability that says it can’t attack, then it doesn’t attack. If there’s a cost associated with having Flamewake Phoenix attack, you’re not forced to pay that cost, so it doesn’t have to attack in that case either.
Flamewake Phoenix’s ferocious ability triggers only if Flamewake Phoenix is in your graveyard and you control a creature with power 4 or greater at the beginning of combat on your turn. Additionally, the ability will check to see if you control a creature with power 4 or greater again as it resolves. If you don’t, the ability will have no effect.
If Flamewake Phoenix enters the battlefield before the combat phase, it will attack that turn if able. If it enters the battlefield after combat, it won’t attack that turn and will usually be available to block on the following turn.
You still choose which player or planeswalker Flamewake Phoenix attacks.
Flamewake Phoenix's last ability will check at the start of your beginning of combat step to see if you control a creature with power 4 or greater. If you don't, the ability won't trigger at all. If it does trigger, the ability will check again as it tries to resolve. If you don't control a creature with power 4 or greater at that time, the ability won't resolve. You won't get a chance to pay , and Flamewake Phoenix won't return to the battlefield.
If Flamewake Phoenix can't attack for any reason (such as being tapped), then it doesn't attack. If there's a cost associated with having it attack, you're not forced to pay that cost, so it doesn't have to attack in that case either.